#system {width: 100%; height: 100%;}
#system ul a {display: block; width: 370px; height: 50px; line-height: 50px; text-indent: 160px; color: #fff; float: left; background: #005EFF; margin: 0 0 3px 5px;}
#system ul a:hover {background: #9F0000;}
#system-sub-menu {width: 100%; height: 30px; overflow: hidden;}
#system-sub-menu li {display: block; width: 100px; height: 30px; float: left; margin-right: 1px;}
#system-sub-menu li a {display: block; width: 100px; height: 28px; line-height: 26px; margin: 1px 0 0 0; font-size: 14px; color: #fff; text-align: center; background: blue;}
#system-sub-menu li a:hover {background: #9F0000;};